2,7-Naphthalenedisulfonicacid,3-[(2-arsonophenyl)azo]-6-[(2,6-dibromo-4-ethoxyphenyl)azo]-4,5-dihydroxy-(9CI);2-(2-Arsenophenylazo)-7-(2,6-dibromo-4-ethoxyphenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonicacid; Arsenazo DBEO
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